Ac

Definition : Actinium
Category : Academic & Science » Chemistry
Country/Region : Worldwide Worldwide
Popularity :

What does Ac mean?

Actinium (Ac) is a radioactive chemical element with symbol Ac and atomic number 89. The word actinium comes from the Greek aktis, aktinos, meaning beam or ray. Actinium was discovered in 1899 by André-Louis Debierne, a French chemist.

7 more results for Ac

Sort:
Filter:
All Countries
Worldwide
Brazil
Canada
All Categories
Academic & Science
Regional
Computing
Transport & Travel
Worldwide AC Alternating Current
Academic & Science
>>
Electrical
Worldwide AC Air Conditioner
Academic & Science
>>
Engineering
Worldwide AC All Clear
Computing
>>
General Computing
Canada AC Air Canada
Transport & Travel
>>
Airport Codes
Worldwide ac Ascension Island
Computing
>>
Domain Names (TLD)
Brazil AC Acre
Regional
>>
States & Districts
Worldwide Ac Acetyl Group
Academic & Science
>>
Chemistry

Frequently Asked Questions

What is the full form of Ac in Chemical Elements?

The full form of Ac is Actinium

What are the full forms of Ac in Academic & Science?

Alternating Current | Air Conditioner | Actinium | Acetyl Group

What are the full forms of Ac in Worldwide?

Alternating Current | Air Conditioner | All Clear | Ascension Island | Actinium | Acetyl Group

Translation

Translate Actinium into other languages

Citations Formatting rules vary by edition. Please verify against your required style manual.

APA Style

FullForms. (2026). Ac. FullForms.com. https://fullforms.com/Ac/full/3679

Chicago Style

FullForms. "Ac." Accessed June 4, 2026. https://fullforms.com/Ac/full/3679.

Harvard Style

FullForms (2026) 'Ac', FullForms.com. Available at: https://fullforms.com/Ac/full/3679 (Accessed: 04 June 2026).

MLA Style

"Ac." FullForms.com, 2026, https://fullforms.com/Ac/full/3679. Accessed 04 Jun. 2026.